 The difference in this example is only a fraction of a cent, which may seem like small change, but it ultimately amounts to $960 more annually on the bottom line. Because though fixed costs do not go down over time, you can reduce your cost per mile with more paid miles. Owner Operator Business 101 is provided by Overdrive's Partners in Business program. Go to OverdriveOnline.com to the Partners in Business section of the website for more details on this and many other topics.